Why does my car idle low when starting?

Why does my car idle low when starting?

Starting, car starts right up and jumps to 2k rpms or whatever when starting, and when its settling back down sometimes it will just die, otherwise idle will drop extremely low to the point of it not registering on the tach, and then idle back up.

When did rough idle on WRX come out?

Discussion in ‘ Modifications And Maintenance ‘ started by Velislide, Oct 14, 2012 . Okay, I’ve been reading since I got my WRX, about the rough idle issues.

Why does rough idle say misfire on cylinders 1, 3?

When hooked up to a code scanner, it said misfire on cylinders 1, 2, 3. Everything else checked out fine. At this point, could it be injectors? I dont have a ton of money, so taking it into a shop is pretty much out of the question.

Why does rough idle have me stumped?

Cleaning the idle control valve helped the idle a bit, though misfire is still there. Ill check the cruise cable, though guessing whatever is causing the misfire was effecting the idle too. What would I need for a proper tune?

Why does my Hyundai Elantra have a rough idle?

While there are a variety of reasons your Hyundai Elantra has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Get your Hyundai issue diagnosed by a professional.

Why are the spark plugs on my Hyundai Elantra not working?

Spark Plugs – One of the absolute most common causes (if not the most common reason that your Elantra may be misfiring) is the spark plugs. Although most modern vehicles use iridium spark plugs, they still need to be changed at the manufacturers recommended interval.

Why is my Elantra air filter not working?

If you have reason to suspect that your Elantra’s air filter has not been changed in a very long time, or if you have recently been driving in tough conditions, it may be worth taking a look at it. It could be so clogged that there is not enough air getting through for quality idle conditions.

How does the Hyundai Elantra fuel injector work?

Fuel Injectors Your Hyundai Elantra’s fuel injection system atomizes the fuel into a fine mist. If a fuel injector is not operating properly, it will either let too much or too little fuel into the combustion chamber relative to the amount of air.